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Fix issue with remapping global uniform blocks

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Avoid adding global uniform blocks to stages that don't already have it.
Otherwise multiple stages point to the same block object, and a
remapping that occurs later on will change the mapping on multiple
stages.
This commit is contained in:
Malcolm Bechard 2021-03-17 18:47:13 -04:00
parent 48f08c60e2
commit 5340752190
7 changed files with 332 additions and 6 deletions
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10
glslang/MachineIndependent/linkValidate.cpp
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@ -108,7 +108,8 @@ void TIntermediate::mergeUniformObjects(TInfoSink& infoSink, TIntermediate& unit
unitLinkerObjects.resize(end - unitLinkerObjects.begin());
// merge uniforms and do error checking
mergeGlobalUniformBlocks(infoSink, unit);
bool mergeExistingOnly = false;
mergeGlobalUniformBlocks(infoSink, unit, mergeExistingOnly);
mergeLinkerObjects(infoSink, linkerObjects, unitLinkerObjects, unit.getStage());
}
@ -362,7 +363,8 @@ void TIntermediate::mergeTrees(TInfoSink& infoSink, TIntermediate& unit)
remapIds(idMaps, idShift + 1, unit);
mergeBodies(infoSink, globals, unitGlobals);
mergeGlobalUniformBlocks(infoSink, unit);
bool mergeExistingOnly = false;
mergeGlobalUniformBlocks(infoSink, unit, mergeExistingOnly);
mergeLinkerObjects(infoSink, linkerObjects, unitLinkerObjects, unit.getStage());
ioAccessed.insert(unit.ioAccessed.begin(), unit.ioAccessed.end());
}
@ -525,7 +527,7 @@ static inline bool isSameInterface(TIntermSymbol* symbol, EShLanguage stage, TIn
// merge the members of different stages to allow them to be linked properly
// as a single block
//
void TIntermediate::mergeGlobalUniformBlocks(TInfoSink& infoSink, TIntermediate& unit)
void TIntermediate::mergeGlobalUniformBlocks(TInfoSink& infoSink, TIntermediate& unit, bool mergeExistingOnly)
{
TIntermSequence& linkerObjects = findLinkerObjects()->getSequence();
TIntermSequence& unitLinkerObjects = unit.findLinkerObjects()->getSequence();
@ -552,7 +554,7 @@ void TIntermediate::mergeGlobalUniformBlocks(TInfoSink& infoSink, TIntermediate&
auto itUnitBlock = unitDefaultBlocks.begin();
for (; itUnitBlock != unitDefaultBlocks.end(); itUnitBlock++) {
bool add = true;
bool add = !mergeExistingOnly;
auto itBlock = defaultBlocks.begin();
for (; itBlock != defaultBlocks.end(); itBlock++) {